9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

u

Answer 1

Hidden content!
#include<stdio.h>

int main()
{
     * * ** *    *   *   *** *   *   a,b,swap;
 **** ** * *     *  *** *  * *   **   * *  ****      * ** * 
*   * *  * *   * ******      *
 *** * * * *** * ** ***
   ***  * * *** *    * ** * *** 
 *** *   **  * *  **** *** * * ** ** * * *     **   * * *     
 ****  *** ** ** * * *****  *  **   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
*** *  ****  ** ***  **   *** first_number;
  *****  ** * *** * * ** *** *  second_number;
    **  ** ** *      ***  **  swap;

*  * ***   *  *  ** *  ** ** *  ** * ** * * *     *** ***    *   *** ***   ******   **


*  **  *  ** *  *         ** ** ** *   
  *    *  * ** *  **** *******  *   ***
 **  *  ***** **  *  *    * ** *    * ** 

  * **  *  *** ** * **   *  ***       * * * *** *  *   * );
    **  *****  * ** * ** *  ******* **** ***** * *  *
 *  *  * ****** ***  *** *    0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
   ****** ** ****** *  **  ** * a,b,temp;
  *********  *** *   *  *  * *     * ** ****  **  **  **  **  
***** *  ****** *  ***  * ** *    *  **
    *   *  *   * *  * * * * *     * *** *  * ** *** * *
return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
*   * **  *    * *** * **  **      *   * *** ** 
  *******        * **  **   *  ***   * ** **** *****    
**   * *** *  ** * ** **   **      
* * *** ***  *** *  *** * *  * 
**** * ***   ** * ** * ***  *
  ***  ******  * ****  ***  *   * *  ** **  ******   *
return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
******   * *  * **  *  
   **  (){
*** *     *
 *   *   *      **  of x and y: *** * * ** *
*  **  **   *** ** **    ***** ** *  
* ** *** * **   *  * of x= %d and the     of y      * * **     
****   
 * 
* ** **
*  *** **  ***  **  ** x   y *  *  ***   **  ***  *


**   0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
* *    *  * ******* 
int   *****
{
      * *****  * a,b,swap;
* ** *  * ***** * *   *** 
  ***   **  ** ****   **** *****
swap=a;
a=b;
b=swap;
 ****** * * * * ** *** * * a);
* *  **  * *    *    **  
**     * ***   *  * * 0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
     **   * ****  
main()
{
*  * *****  *  ** ***
   *** * *  *   * *   *  * 
 ***** ******* *  *  *  *  
swap=a;
a=b;
b=swap;
***   * ** *  * ** *  a);
***    * * *** **   **  *
* *  *       * * *   * 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
 ***  *  *** *   * ***
 int main(){
int a,b;

  ** * * ** ***  * *   ** ****   *** ** * *   ****    *** ** ** **  *  * * *

* * ****  ** **  *  **    * *  *** *     **  **    * 

return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
   *   * *    * *
***     main(){
int a,b;

 ****** *   ** *  * * ***** *** ** **      **  *  ** * *  **** ** *** 

* * ** **  ***  * ** * ** * **   ** ** * *  *  ** *  *  *  *

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
** *  * * **   ****  * * ** *
 *** ** *       **     ****  * * x,y,temp;
* ****         ** *    *** **
*  ***   *     *** *   ***   *** *** ** *****    * * *  * *  *
*** **     ** *** *    *   *** * **** *   *     ** 
    
*  *  ****  *   * * ***   = x;
  * * ***     * *   *** *  = y;
* *  *** *   ***   *  *  **  = temp;
*   ***  *****    ****   **
 **    * * * *  * ** * *** **     **  ***    *  * *     x,y);
  **   **    ****  * * ** ****
*  **     * ***   **** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output